Terminal for electric cables.



0. w. DAVIS. TERMINAL FOB ELECTRIC CABLES.

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i m smrns fication.

CHARLES W. DAVIS, OF EDGEWORTH, PENNSYLVANIA, ASSIGNOR TO STANDARDUNDER- GROUND CABLE COMTANY, OF PITTSBURG,

PENNSYLVANIA.

PENNSYLVANIA, A CORPORATION OF TEBMINALTOB ELECTRIC cAiaLEs.

Patented i'l'uly 6, 1909.

Application filed August 3, 1908. Serial No. 446,621.

To. all whom it may concern:

Be it known that I, CHARLES W. DAVIS, residing at Edgeworth, in thecounty of Allegheny and State of Pennsylvania, a citizen of thediscovered certain new and useful Improvements in Terminals for ElectricGables, of which improvement the following is a speci- The inventiondescribed herein relates td certain improvements in terminal heads forprotecting the portion of the cable stripped of the sheath andinsulation for connection with the aerial line.

- The invention is hereinafter more fully described and claimed.

In the accompanying drawings-forming a part of this specification,Figure 1 is a sectional elevation of my improved terminal head and Fig.2 is a similar view illustrating a modification.

In the practice of my invention the lead sheath and the insulation areremoved from the cable for a suitable distance and the metal thimble 1and sleeve 2 are slipped onto the cable. The sleeve 2 is formed ofinsulating material which is provided with one or more petticoats 3 toprotect the joint between the thimble and insulator or the point ofemergence of the conducting element from the insulating sleeve, from theweather. As shown this petticoat may extend out at right angles from theaxis of the insulator or as indicated in dotted lines may curvedownwardly toward the. point which is to be protected from the weather.After the thimble and sleeve have threaded on the cable, the bared endof the conductor is electrically connected with conducting link ormember 4 adapted to be connected to the aerial line. This link isprovided with a socket into which the end of the conductor is sweated.This link is then secured to the insulating sleeve, preferably by theengagement of threads on the link with internal threads on the sleeve.The link is provided with a disk portion 5 preferably made in the formof a flange, and adapted to bear tightly on the insulating sleeve, wherethe conducting element emerges therefrom and protect the oint betweenthe sleeve and conductingelement. In lieu of employing the conductinglink or member 4, the conducting core of the cable may extend entirelythrough the insulating sleeve as shown in Fig. 2. In such case the diskfor United States, have invented or.

sealing the end of conducting core. The disk may be attached to the corein any suitable manner, as for example the core may be threaded and thedisk formed with a threaded opening, so that it may be screwed down ontothevend of the sleeve. be interposed between the disk and the end of thesleeve. In order to further protect the joint between the sleeve anddisk, the

ing along and inclosing a neck or extension on the end of the sleeve.When em loying the construction shown in Fig. 2, t e conducting core isformed with a shoulder a between which and the disk the insulatingsleeve is clamped. After the sleevehas been connected to the conductingcore, the. thinfble is secured to the opposite end of the sleevepreferabl by a threaded joint and the thimble secure to the sheath by awiped soldered joint 8.

It will be observed that it is characteristic of the inventiondescribedherein that an insulating sleeve surrounds and incloses thestripped conducting core of the cable, and is closed at one side by theelement connecting posite end by means which are carried by or form atight joint with the conducting element.

' element 4 has a bearing against the end of the cable conductor, and tat the insulating sleeveand the thimble are connected respectively toeach other, and to the conducting element 4 and the sheath of the cable.So that these arts or elements will forma connecting lin from the end ofthe conductor to, the sheath, preventing the latter from slipping downalong the conductor when the cable is in a vertical condition.

I claim herein as my invention:

1. A terminal structureihaving in combination a thimble adapted to besecured to the sheath of a cable, a conducting element for connectingthe cable conductor to an ment, and a sleeve formed of insulatingmaterial interposed between the thimble and disk and adj ustablyconnected to the thimble.

2-. A terminal structure having in comthe sheath of a cable, aconducting element the sleeve is carried by the If desired a packingwasher 6 may latter may be provided with a rim 7 extend-' it to thesheath of the cable and at the op- It willbeobserved that the conductingaerial, a disk carried'by the conducting elebination a thimble adaptedto be secured to for connecting the cable conductor to an aerial, a diskcarried by the conducting element, and a sleeve formed of insulatingmaterial interposed between the thimble and disk and adjustablyconnected to the thimble, the disk having a rim adapted to rotect thejoint between the sleeve and dis 3. -A terminal structure having in com-I bination a thimble adapted to be secured to the sheath of the cable, aconducting link adapted to be electrically connected with the conductorof the cable, a disk carried by the link, and a sleeve formed ofinsulating ma- .terial interposed between the thimble and disk, andadjustably connected to the thim- 'ble, said disk closing the end of thesleeve.

4. A terminal structure for electric cables having in combination athimble secured by a wiped joint to the sheath of the cable, aconducting element for connecting the cable conductor to an aerial, anannular non-conducting sleeve secured to and carried'by one end of thethimble and a disk integral with the conducting element and adapted toform a tight joint with the end of the sleeve around the conductingelement.

5 A terminal structure for electric cables having in combination athimble secured to the sheath of the cable, a conducting element forconnecting the cable conductor to my hand.

' CHARLES W. DAVIS.

Witnesses:

CHARLES BARNETT, FRANCIS J. TOMASSON.

